Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f6806dca9e4efe…

MALICIOUS

PDF

67.6 KB Created: 2021-03-28 18:26:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 6894c324ff18e0be8e354887b699b1ce SHA-1: fba2249dc521c94caeaad182f8b93bbd456ce047 SHA-256: e2f6806dca9e4efee282a4c1190641179b166932dc901686b015950ecd3c8f9e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, including a link farm on disposable hosting, suggesting an attempt to redirect users to malicious sites. The presence of embedded URLs and the overall structure point towards a phishing or malware distribution scheme, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ponafet.ru/strik?utm_term=boundaries+in+marriage+audiobook PDF link annotation
    • http://vezerfa.xyz/brzechwa_akademia_pana_kleksatc2m1.pdfIn PDF document text
    • http://crawlmqyu.space/how_to_study_first_year_mbbs5o6yv.pdfIn PDF document text
    • https://cdn.sqhk.co/kulamogo/iyshhdR/snake_island_sea_of_thieves_gunpowder_tunnels.pdfIn PDF document text
    • https://cdn.sqhk.co/gosuzufus/NzgeAZP/guideone_mutual_insurance_company_phone_number.pdfIn PDF document text
    • https://cdn.sqhk.co/pegebatanuz/Z32mgib/flying_monkey_high_rise_crop_flare_jeans.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/hiHigih/fapuxofuxetufowitowon.pdfIn PDF document text
    • https://cdn.sqhk.co/vekosozob/3ujfieo/hd_sports_bike_wallpaper_for_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/zupuguvawaj/gdhgjai/electricity_meter_box.pdfIn PDF document text
    • https://cdn.sqhk.co/tanusulirava/aHhkggK/lejodo.pdfIn PDF document text
    • http://apple-fruit.space/how_to_configure_cisco_router_step_by_stepsjcen.pdfIn PDF document text
    • http://prizinsta.info/pride_and_prejudice_mr_darcy_actorsewtri.pdfIn PDF document text
    • https://cdn.sqhk.co/ganinidunop/igdggjf/italian_music_pop_songs_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jisepozidis/Cjgjfif/space_drawing_perspective_dongho_kim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lizaduguxo.epizy.com/58728228033.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64c1edf8-6e09-4a9a-8a84-e8e61f4d5b5c/ingredients_in_wendys_spicy_chicken_nuggets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c500a2f-de40-4e48-b6c5-1a40266d295a/diary_of_a_wimpy_kid_book_15_wikipedia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5ef96dc-87fe-4c13-b647-0bf18be0ae52/cursos_de_ingles_en_miami_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcf82725-c319-4afc-a7b5-d62f03800b86/lisipitorem.pdfIn PDF document text
    • http://desebavufix.rf.gd/arduino_code_for_dc_motor_control.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE63 5368 bytes
SHA-256: 93989b75f539c60fce3e722481be36e60f785c4b724d301293f0215e139c6390
font_01_sfnt_off0000e08d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08D 9632 bytes
SHA-256: f6996e5e2402e746414606d2ed5a4bbba5120074c024dfb88ae4c64c6beaad14

Open this report in the interactive analyzer, or submit your own file for analysis.